IEC TR 61641:2014给出了在空气中因内部故障而产生电弧条件下测试组件的方法指南。该测试的目的是评估组件限制人身伤害、组件损坏风险的能力及其因内部电弧故障而进一步维修的适用性。这第三版取消并取代了2008年出版的第二版。它构成技术修订。与上一版相比，第三版包含以下重大技术变更: -电弧等级，以定义针对电弧故障提供的不同形式的保护；（i）人员保护，（ii）仅限于组件的一部分的损坏，以及（iii）适合于有限的进一步服务的组件。 -在电弧故障条件下由组件提供的两级人员保护；（i）对于安装在限制技术人员进入组件的区域的组件，以及（ii）对于安装在普通人可以进入该区域的区域的组件； -单独绝缘所有带电导体以使整个组件成为电弧点燃保护区(在技术报告的前几版中称为“无电弧区”)的选项； -电弧故障保护组件的正面、背面和侧面作为正常要求； -引弧保护区的最低性能要求。

IEC TR 61641:2014 gives guidance on the method of testing of ASSEMBLIES under conditions of arcing in air due to an internal fault. The purpose of this test is to assess the ability of the ASSEMBLY to limit the risk of personal injury, damage of ASSEMBLIES and its suitability for further service as a result of an internal arcing fault. This third edition cancels and replaces the second edition published in 2008. It constitutes a technical revision. This third edition includes the following significant technical changes with respect to the previous edition:
- arcing classes to define the different forms of protection provided against arcing faults; (i) personnel protection, (ii) damage restricted to part of the ASSEMBLY, and (iii) ASSEMBLY suitable for limited further service.;
- two levels of personnel protection afforded by ASSEMBLIES under arcing fault conditions; (i) for ASSEMBLIES installed in areas where access to the ASSEMBLY is restricted to skilled persons, and (ii) for ASSEMBLIES installed in areas where the area is accessible to ordinary persons;
- option of individually insulating all live conductors to make the complete ASSEMBLY an arc ignition protected zone (referred to as an 'arc free zone' in previous editions of the Technical report);
- arc fault protection front, back and sides of an ASSEMBLY as the normal requirement;
- minimum performance requirements for arc ignition protected zone.